Purpose: To predict levels of particulate pollution in various locations
JW - covered porch backyard, on a bookshelf in a bedroom
CS- basement wall, stuck to side of tree
PS - on tv in living room (dog + 2 cats)
CB - In kitchen next to refrigorator, on front steps of house
JK-
Hypothesis:
CS - I think the sticky note on the tv in the livingroom will collect the most "pollution" and the sticky note on the bookshelf in the bedroom will collect the least "pollution.".
JW- I think the one on the front steps of the house will get the most pollution because it is closer to the street and the street is where a lot of pollution come from and also it is near a lot of activity.
Materials:
Graph paper
Double-sided tape
Index Card
Wax paper
Pin?
Procedure:
Create a particulate pollution collector:
Cut 2 - 5cm x 5cm pieces of graph paper (paper in class has 5 squares per cm)
Lay the two pieces of graph paper on one large index card (or use 2 small index cards)
Cover the graph paper pieces with double-sided tape. Be sure to use long pieces of tape so that your fingerprints are not on top of the graph paper. Be sure that there are no gaps on top of the graph paper.
Cover the whole index card with wax paper, so that the double-sided tape is protected.
Cut the large index card apart so that there is one graph paper pollution collector on each piece.
Write your name on each piece.
Take the particle pollution collectors home. Put one in an indoor location and the other outside somewhere. Note the time on the back of the index card.
Remove the wax paper. Be sure the collector is secured in its location so that it doesn't fall off a shelf or get knocked off of a porch railing.
Leave the pollution collector in place for 12-48 hours. Due back in class on Wednesday 2/3/09!
When the card is removed, recover it with wax paper to protect it during transport back to school. Note down on the back of the card what time you removed it from the collection location.
Using a stereo-microscope, count the number of particles on your card. If there are too many to count, choose a sample area of 100 squares to count.
Chart your data in the table below.
In the observations section, note any oddities you see on your collection card. Can you identify any of the particles you see?
Data:
Name
Inside number
Outside number
Bookshelf
Covered Porch
JW
9 particles in 12 hours
14 in 12 hours
Basement wall
Stuck to side of tree
CS
36 particles in 40 hours
21 squares with particles 40 hours
on tv in living room
front porch, not covered
PS
20 squares with particles in 22 hours
14 in 26 hours
Kitchen?
front yard somewhere?
CB
near a heater or fireplace?
near where the car is parked?
JK
Observations:
JW - I saw a lot of different particles on the outdoor stickys than I did on the indoor stickys. This happens because there are things inside the house that filter the particles while outside there is nothing to filter them. But inside there are added things to cause there to be a lot of particles like animals and things. A lot of the indoor particles were a lot of hair from animals.
PS - We observed the air pollution catchers from the inside. It seems as thought the basement caught the most dirt and it mostly just looked like basement dust and debris. It seemed as though the bookshelf caught the least amount of dust and it just looked like dust when we observed it. The catcher from the living room, on the tv, caught mostly pet hair and that's what took up most of the squares.
Conclusions:
CS - The sticky notes in the living room and the un-covered porch collected the most pollution in the air and the sticky note on the bookshelf collected the least pollutioin. My hypothesis was correct.
JW- the sticky note on the fron porch so far has the most particles on it probably from the tree and from other things like things going on the tree or flying past it.
Hypothesis:
CS - I think the sticky note on the tv in the livingroom will collect the most "pollution" and the sticky note on the bookshelf in the bedroom will collect the least "pollution.".
JW- I think the one on the front steps of the house will get the most pollution because it is closer to the street and the street is where a lot of pollution come from and also it is near a lot of activity.
Materials:
Procedure:
Data:
Observations:
JW - I saw a lot of different particles on the outdoor stickys than I did on the indoor stickys. This happens because there are things inside the house that filter the particles while outside there is nothing to filter them. But inside there are added things to cause there to be a lot of particles like animals and things. A lot of the indoor particles were a lot of hair from animals.
PS - We observed the air pollution catchers from the inside. It seems as thought the basement caught the most dirt and it mostly just looked like basement dust and debris. It seemed as though the bookshelf caught the least amount of dust and it just looked like dust when we observed it. The catcher from the living room, on the tv, caught mostly pet hair and that's what took up most of the squares.
Conclusions:
CS - The sticky notes in the living room and the un-covered porch collected the most pollution in the air and the sticky note on the bookshelf collected the least pollutioin. My hypothesis was correct.
JW- the sticky note on the fron porch so far has the most particles on it probably from the tree and from other things like things going on the tree or flying past it.